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a(n) = binomial(primorial(n), n).
0

%I #28 Sep 17 2023 18:33:30

%S 1,2,15,4060,78738660,545754554499462,1018081517447240182211275,

%T 1793004475784081302284255717158418120,

%U 1943305407393725342965469143054357602760779899437185,3772316402417100592416011698371929155605067111502494326520988270728160

%N a(n) = binomial(primorial(n), n).

%F a(n) = binomial(A002110(n), n).

%o (Python)

%o from sympy import binomial, primorial

%o a = lambda n: binomial(primorial(n), n)

%o print([a(n) for n in range(1,10)])

%o (PARI) a(n) = binomial(vecprod(primes(n)), n); \\ _Michel Marcus_, Sep 14 2023

%Y Cf. A002110, A007318, A014062, A060604, A086687.

%K nonn

%O 0,2

%A _DarĂ­o Clavijo_, Sep 13 2023